【单选题】We found _________ necessary _________ our pocket money to support Project Hope.
【单选题】The mayor is a woman with great and therefore deserves our political and financial support.
【简答题】请按课外要求完成每个小组的系统分析说明书,并上传至对应的论坛帖子里。
【简答题】有两个电容器,电容分别为10μF和20μF,它们的额定工作电压分别为25V和15V。现将它们并联后接在10V的直流电源上,则它们储存的电荷量分别是____和____;此时等效电容是____μF;并联电路允许加的最大工作电压是____。(用小数表示)
【单选题】In the sentence 'His ambition to become an astronaut deserves our support', the italicized part is used as
【单选题】They sent us their statement, ______ to get our support.
【简答题】将上题中的两个电容器串联后接在30V的直流电源上,则它们储存的电荷量分别是____和____;(用小数表示)此时等效电容是____μF(用分数表示);该串联电路允许加的最大工作电压是____。(用小数表示)
【单选题】They sent us an open letter, ______ to win our support.